Hole migration in the spin-ladder, dimer chain material Sr2.5Ca11.5Cu24O41

R. Bewley, R. S. Eccleston, T. Nagata, J. Akimitsu

Research output: Contribution to journalConference articlepeer-review


The structure of the (SrxCa1-x)14Cu24O41 series contains both Cu2O3 spin-ladder layers and CuO2 spin chains. Previous measurements on the undoped sample (x = 1) showed all the holes were located on the chains, with the magnetic Cu2+ ions on the chain forming a well-defined dimer configuration. We have performed inelastic neutron scattering on a single crystal of the Ca-doped sample Sr2.5Ca11.5Cu24O41. The results show that two magnetic states now coexist on the chain, with one hole per formula unit migrating to the ladders.

Original languageEnglish
Pages (from-to)662-663
Number of pages2
JournalPhysica B: Condensed Matter
Publication statusPublished - Mar 2000
Externally publishedYes
Event2nd European Conference on Neutron Scattering (ECNS '99) - Budapest, Hung
Duration: Sep 1 1999Sep 4 1999

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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